Roland SYS-521 usb the carrier VCO must also

the carrier VCO must also reverse direction of oscillation to simulate the requirement of going 'backwards in time' – this is merely a mathematical conundrum as it is quite analogous to simply reversing the wave-form’s polarity

Power: 85mA @ +12V / 32mA @ -12V

which can build a beautifully large and lush sound before the use of any additional stereo effects like reverb or delay

Inputs and outputs are color-coded for recognition at a glance

Roland SYS-521 usb the carrier VCO must alsoThe 521 Dual VCF (voltage controlled filter) module features two separate low pass filters for modifying the timbre of audio sources. Each filter has its own dedicated controls for frequency cutoff, resonance, and a fixed high pass filter with two switchable cutoff points. Audio and CV input mixers on each channel allow the blending of multiple audio signals and modulation sources. Width: 16HP Depth: 129mm Power: 85mA @ +12V 90mA @ 12V